Android :: How To Loading Images (assets / Resources) Dynamically?

May 21, 2009

How do I load the image dynamically through the code? If its unclear, I mean, I want to load image files by name based on the condition in the code. If I use images as resources, the image names have to be hard coded. This is unacceptable to me. If I load image in a webview (with image src path dynamically), the time it takes to load is unacceptable to me. Can anyone suggest any other way to load the images dynamically?

Android :: How to loading images (assets / resources) dynamically?


How To Move Set Of Images In Resources / Drawable - HDPI To Assets Folder

Dec 13, 2013

I am trying to move a set of images currently in the resources/drawable-hdpi folder to the Assets folder.

These images are copied to the private application directory when the app is installed.

When I do this the resulting image is smaller than when I had the image in the resources folder. i.e. the baked beans image is smaller than the others. If I load the baked beans images from the drawables folder it is the same size as the other product images.

I have tried to scale the image but it has no effect.

public View getView(int position, View convertView, ViewGroup parent)
{
ImageView imView = (ImageView)rowView.findViewById(R.id.product_thumb nail);
ImageView imProduct = (ImageView)rowView.findViewById(R.id.product_icon) ;
tvName.setText((CharSequence) values.get(position).getName());

[Code]...

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Android :: Dynamically Loading Images

Aug 31, 2010

I am stuck in an peculiar scenario, while developin an app in android.

My app, downloads image from internet and populates the same in a thumbnail format in the application.

As i am not aware of the number of picture's/thumbnails at design time, i am creating image view controls dynamically by using the below mentioned code.

CODE:...................

But in this scenario, all my images gets overlapped with each other. Wherein i want 3 images to be displayed on each row, which i am able to achieve through xml.

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Android :: Get List Of All Resources / Assets In APK?

Aug 11, 2010

I am trying to get list of all raw resources or assets packaged in my APK. This is required because i have written code and i am generating APK's after changing only resources. So, I want to know how many resources exists in my APK.

But i am not able to find any API from which I can get the list of resources which are packaged in my APK.

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Android :: Referencing Local Resources From Assets In Static Html

Oct 17, 2010

I have a webview in my activity and loaded contents for webview by following:

CODE:..................

In description.html i have a reference for another html file located in the same place by following:

CODE:..................

This was working absolutely fine in emulator but when i run it on my Galaxy S mobile, hyperlink does not work fine. Kindly help me. Is there any permission i am missing or something else?

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Android :: Loading JS / CSS Files In Assets Within HTML

Jul 8, 2010

I'm loading html into a webview from my assets folder, works no problem. In my second experiment I've loaded HTML from a database (after pulling from remote source) and displayed in a webview (also no prob). Now I'm trying to change the baseref inside the html to have all JS and CSS references point to source files under assets. This part doesn't seem to work. I get warnings from the web console that it can't load these files due to security issue.

Now I've resorted back to a content provider and overriding openFile (and setting base ref with content://...) but now I'm hitting another problem with the JS and CSS files in assets being compressed. Can load html from assets but loading JS, CSS from within that HTML is another story. Before I dig deeper, am I over-complicating this?

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Android :: Loading Video From Assets Folder

May 21, 2009

I'm trying to load a video file from assets folder, but MediaPlayer or VideoView still crashes. Somebody has an idea?

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Android :: Binding Images From Assets To A SimpleCursorAdapter

Nov 23, 2009

I was poking around in the documentation for the simpleCursorAdapter and I read that if the simpleCursorAdapter doesn't identify your images as resources it will assume they are URIs. My question is how do i retrieve the URI for an image placed into the asset folder of my application?

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Android :: Images From Assets Folder In GridView

May 2, 2010

I have been working on creating a Grid View of images, with images being present in the Assets folder. http://stackoverflow.com/questions/1933015/opening-an-image-file-inside-the-assets-folder link helped me with using the bitmap to read it.My application does read the image from the Assets folder, but it is not iterating through the cells in the grid view. All the cells of the grid view have a same image picked from the set of images. Can anyone tell me how to iterate through the cells and still have different images?

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Android :: Load Images Or Whole Site From Local Assets Folder Using Web View

Aug 13, 2010

the question i have is simple but hard to put in words, ill give it a try anyways.i am trying to load a web page in web view,however the load time is a little high.is there anyway i can put the images in the assets folder and load them from there instead?if not, is there a way i can load the whole site from the assets folder, providing that my php files can still communicate with my internet database?i have already read most tutorials however they are pretty vague when it comes to concrete help.

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Android :: Dynamically Loading ListView

Sep 28, 2010

I want to dynamically load a ListView, for example, load them during the scrolling so its not loading all 100 posts I have. How can I achieve this?

I have looked at similiar solutions here at SO, but since I not got it to work, I asked this question.

My code:.............

I have in the same .java file, functions to download the info from the web and loop through 100 items, like this:

CODE:................

And then it add a new order correctly and so on. But now!(?) I want to have so when the first item is loaded, it should appear and when scrolling it loads gradually.

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Android :: Determine Images At Runtime / Get Resources

Mar 17, 2009

In my application I have a table that stores information for symbols. These symbols have to be displayed, so also the source, the *.png, is stored in each row. These symbols are loaded randomly at runtime. How do I get the the image(s) to be loaded? Code...

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Android :: Dynamically Loading JAR File At Runtime

Mar 18, 2009

I am storing the required test.jar file in the /sdcard. I want to load it dynamically at runtime and want to execute a function xyz() resides in that. For this purpose I had written following code:
But got ClassCastException : dalvik.system.PathClassLoader

Following is my code ,
import java.io.File; import java.io.IOException; import java.lang.reflect.InvocationTargetException; import java.lang.reflect.Method; import java.net.URL; import java.net.URLClassLoader;

import android.app.Activity; import android.os.Bundle; import android.util.Log;
public class Collabera extends Activity {
/** Called when the activity is first created. */
private static final Class[] parameters = new Class[] { URL.class };
public static void loadURLClass(String classPathURL) throws IOException {
File f = new File(classPathURL);
URL url = f.toURL();
URLClassLoader systemLoader = (URLClassLoader) ClassLoader.getSystemClassLoader();
Class systemLoaderClass = URLClassLoader.class;
try { Method method = systemLoaderClass.getDeclaredMethod("addURL", parameters);
method.setAccessible(true);
method.invoke(systemLoader, new Object[] { url });
} catch (Throwable t) { t.printStackTrace();
throw new IOException( "Error, could not add URL to system classloader");
} }
@Override
public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Log.i("See","**************Before Loading Class Path**************");
try { Class.forName("test.Test1");
} catch (ClassNotFoundException e) { System.out.println(" Test Class Not Found ....");
} Log.i("See","**************After Loading Class Path**************");
try { loadURLClass("//sdcard//test.jar");
Class c = Class.forName("test.Test1");
Log.i("See"," Test Class Found ....");
Method method = c.getMethod("xyz", null);
Object o = c.newInstance();
String s = (String) method.invoke(o);
Log.i("See","Got method: " + s);
} catch (ClassNotFoundException e) { System.out.println(" Test Class Not Found ....");
} catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace();
} } }

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Android :: Orientation Problem While Dynamically Loading Views

Jul 8, 2009

I am trying to load textView and CheckBox view dynamically to a LinearLayout. i am getting some Orientation problem while doing the same.I want these two view in a single row but i its coming as in different raw.

Below is may code:

CODE:..............

layoutxml is

CODE:..................

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Android :: How To Reference Resources (images) From HTML Page In Webview?

Sep 18, 2009

How to reference resources (images) from a HTML page in webview? I am trying to display an image in HTML and the image is an android resource. <html> <body> <img src=" ? " /> </body> </html>

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Android :: Avoiding Duplicate Resources In Project / Want Some Of Landscape Images

Aug 25, 2010

I have some images in my drawable folder and they have landscape versions in drawable-land. However I want some of the landscape images to be shared, as it seems a waste to duplicate the file with a different name. Is it possible to make a sym link (shortcut) or something for one of the duplicated files to prevent wasting space

Folder explanation below as I'm not great at explaining myself:

/drawable
> image1.png
> image2.png
/drawable-land
>image1.png <-- This image
>image2.png <-- is identical to this file

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Android : How To Display Different Images For Resolutions In HTML Resources In Droid?

Nov 15, 2010

How do you display different images for different screen resolutions (hdpi, ldpi, mdpi) in an embedded HTML resource of an Android app?

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Android :: Layout Not Displayed Properly While Loading Listview Dynamically

Apr 22, 2010

I am trying to laod the listview dynamically. There are three textviews inside a listview. The text to be set in the textview is fetched from the server. All this is working fine. I am able to fetch the text and am able to display it inside the listview.

The only problem is the position of the textview. The xml layout file is as under:

CODE:.............

If I look at this xml layout in the eclipse layout tab then it is displayed properly. Problem occurs only when the text is fetched dynamically.

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Android 2.2 Phone - Dynamically Loading External Library At Runtime?

Jul 29, 2013

I am using and android 2.2 phone for testing and getting an error.

07-27 01:24:55.692: W/System.err(14319): java.lang.ClassNotFoundException: com.shoaib.AndroidCCL.MyClass in loader dalvik.system.DexClassLoader@43abbc20

First I wrote the following class:

Code:
package org.shoaib.androidccl;
import android.util.Log;
public class MyClass {
public MyClass() {
Log.d(MyClass.class.getName(), "MyClass: constructor called.");
}
public void doSomething() {
Log.d(MyClass.class.getName(), "MyClass: doSomething() called.");
}
}

And I packaged it in a DEX file that I saved on my device's SD card as `/sdcard/testdex.jar`.

Then I wrote the program below, after having removed `MyClass` from my Eclipse project and cleaned it:

Code:

public class Main extends Activity {
[MENTION=1299008]supp[/MENTION]ressWarnings("unchecked")
[MENTION=439709]override[/MENTION]
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

[code]....

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Android :: Display Images Dynamically On Dynamic Positions?

Sep 2, 2010

I have rectangles and images and i want to show that images on that positions that rectangle holds in it...it is all dynamic. and i am using bitmap class to display but now i have to set positions according to that rectangle...

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Android :: List Activity With Dynamically Loaded Images Form Web

Nov 18, 2010

In my project In the first section i have parsed the xml data of Video categories and image url links from My web service.I have parsed that data and receive that data in ArrayList in My main activity.The first ArrayList is the list of video categories and the second ArrayList is the the list of video image urls and i have to display ArrayList of image urls as ImageView in ListView ,i have no idea for that,please give me some solution.

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Android :: Which Is Better Loading Of Images For ListView?

Jan 19, 2010

I am wondering if which of the two is better in loading images in a listview from web, is it by batch through some number of threads that are running simultaneously or one by one through thread queue? I have noticed (but I don't know if that is really the implementation) from the youtube app that the images are loaded by batch and it is kinda fast. Even for not only loading images but also requesting some data from the web as well. Does anyone have an idea?

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Android :: Development Loading Images From URL

Nov 20, 2010

I Know this question has been asked and answered but i have a different problem. I have a app out right now that wont load images that are higher than 5mp but loads smaller ones. Im not sure if its 5mp or over 1mb, Im pretty sure its mp though, I have tested. How can I load pictures that are all sizes? My code is below, Please help, please post code not links, of must to links then links to code that can help.

Downloading The Image

CODE:...............

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Android :: Images Not Loading On The Phone

Jul 29, 2009

In my app I am downloading images from a remote server and putting it into a gallery and displaying it. The problem is that when i do it on the emulator it works absolutely fine but when i do it on the phone few of the images come and a few are null. I tried many ways but I am not able to find the perfect way. The images on my server are of 50 kb max. But still some are downloaded and rest are not. it would be really great if someone could help me asap coz i need to make this app live by this weekend.

Here is the code snippet to download the images from the server.

CODE:.........

Also is there any other way of loading the images in a seperate thread like it happens in the android market.

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Android :: Incremental Loading Of Images

Aug 14, 2010

In my app I need to download a lot of images for data in a ListView. I do lazy loading and it works rather fast, but still there is a 1-3 secs delay before the first image shows up. My research in the delay shows that the data transfer takes 50% of the time.

Now, I believe that If I could do incremental loading of the images, I would be able to show half an image after just 75% of the delay, which is quite good.

I use Drawable.createFromStream which uses BitmapFactory.decodeResourceStream internally. But even though it takes a stream, it doesn't paint anything before all data is downloaded and decoded.

Do you know a way to load and paint images incrementally with the default Android lib? Or perhaps a good independent one out there?

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Android :: ListView With Lazy Loading Of Images

Jul 22, 2010

I try to implements lazy loading of images in a listview. There is no android features to make this, so I should implement it by myself. Have anyone already done this? Take the solution care of scrolling and lazy loading new images and stop to load not more necessary images?

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Android :: Lazy Loading Images In A ListView

Dec 8, 2009

I trying a hand at ListViews and my current experiment is aimed at displaying some data in a ListView. The data to be displayed in each row is simple: an image and some text. The images come from a remote server and the textual data is hardcoded. I have a class that downloads images using AsyncTask and caches the list of images fetched as SoftReferences in a LinkedHashMap. I am also passing a reference of the view to this class, so when the image download/cache read is complete the class will set appropriate Bitmap in the view.
Code...

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Android :: Lazy Loading Images In ListView

Sep 22, 2010

I implemented the lazy-loading images in my ListView. I use a AsyncTask to download the image from the internet and bind it to the ImageView in the UIThread. It's working except that when I scroll the ListView vary fast, the downloaded images sometimes are binded into the wrong items in the list.I guess the problem is from the reuse of convertView in the BaseAdapter. Code...

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Android :: Lazy Loading Images In A ListView?

Feb 13, 2010

Here are 4 references that I have found for lazy-loading images into a listview in Android. The idea is to display a placeholder image, get the actual image in the background, update the ImageView in the list when the image is available. I've tried to do this in the simplest way possible using an AsyncTask in an Adapter. The outline of that approach is below. Is it flawed? Is there an agreed approach to handling this common task? Code...

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Android :: Loading Images As Drawable Objects From URL

Jul 30, 2010

I am presently using the following piece of code to load in images as drawable objects form a URL.
Drawable drawable_from_url(String url, String src_name) throws java.net.MalformedURLException, java.io.IOException { return Drawable.createFromStream(((java.io.InputStream)new java.net.URL(url).getContent()), src_name); }

This code works exactly as wanted, but there appears to be compatibility problems with it. In version 1.5, it throws a FileNotFoundException when I give it a URL. In 2.2, given the exact same URL, it works fine. The following URL is an sample input I am giving this function.
http://bks6.books.google.com/books?id=aH7BPTrwNXUC&printsec=frontcover&img=1&zoom=5&edge=curl&sig=ACfU3U2aQRnAX2o2ny2xFC1GmVn22almpg
How would I load in images in a way that is compatible across the board from a URL?

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